diff options
Diffstat (limited to 'kernel/source/interrupts.asm')
| -rw-r--r-- | kernel/source/interrupts.asm | 80 |
1 files changed, 44 insertions, 36 deletions
diff --git a/kernel/source/interrupts.asm b/kernel/source/interrupts.asm index e0c3cdb..e4912ee 100644 --- a/kernel/source/interrupts.asm +++ b/kernel/source/interrupts.asm @@ -227,19 +227,51 @@ section .bss section .text +isr_start: + + push rcx + mov rcx, qword [rsp + 8] + mov qword [rsp + 8], rax + push rdx + push rdi + push rsi + push r8 + push r9 + push r10 + push r11 + push rcx + + ;this is a complete hack but it works + mov rdi, qword [rsp + 10 * 8 + 4 * 8] + cmp rdi, 0x38 + je .fix_ss + ret + +.fix_ss: + mov qword [rsp + 10 * 8 + 4 * 8], 0x3b + ret + +isr_end: + + pop rcx + pop r11 + pop r10 + pop r9 + pop r8 + pop rsi + pop rdi + pop rdx + mov rax, qword [rsp + 8] + mov qword [rsp + 8], rcx + pop rcx + + ret + extern on_keyboard_interrupt keyboard_isr: - push r11 - push r10 - push r9 - push r8 - push rsi - push rdi - push rdx - push rcx - push rax + call isr_start call wait_read_ps2 in al, 0x60 @@ -250,15 +282,7 @@ keyboard_isr: mov al, 0x20 out 0x20, al - pop rax - pop rcx - pop rdx - pop rdi - pop rsi - pop r8 - pop r9 - pop r10 - pop r11 + call isr_end iretq @@ -266,15 +290,7 @@ extern on_mouse_interrupt mouse_isr: - push r11 - push r10 - push r9 - push r8 - push rsi - push rdi - push rdx - push rcx - push rax + call isr_start call wait_read_ps2 in al, 0x60 @@ -286,15 +302,7 @@ mouse_isr: out 0x20, al out 0xa0, al - pop rax - pop rcx - pop rdx - pop rdi - pop rsi - pop r8 - pop r9 - pop r10 - pop r11 + call isr_end iretq |